Buggy code:
private boolean checkLabelStatement ( ) { } private boolean checkMemberAccess ( ) { } private boolean checkNameCompletion ( ) { } private boolean checkParemeterizedMethodName ( ) { } private boolean checkParemeterizedType ( ) { } private boolean checkRecoveredMethod ( ) { } private boolean checkMemberValueName ( ) { } private boolean checkRecoveredType ( ) { } private void classHeaderExtendsOrImplements ( boolean isInterface ) { } public void completionIdentifierCheck ( ) { } protected void consumeArrayCreationExpressionWithInitializer ( ) { } protected void consumeArrayCreationExpressionWithoutInitializer ( ) { } protected void consumeArrayCreationHeader ( ) { } protected void consumeAssignment ( ) { } protected void consumeAssignmentOperator ( int pos ) { } protected void consumeBinaryExpression ( int op ) { } protected void consumeBinaryExpressionWithName ( int op ) { } protected void consumeCaseLabel ( ) { } protected void consumeCastExpressionWithPrimitiveType ( ) { } protected void consumeCastExpressionWithGenericsArray ( ) { } protected void consumeCastExpressionWithQualifiedGenericsArray ( ) { } protected void consumeCastExpressionWithNameArray ( ) { } protected void consumeCastExpressionLL1 ( ) { } protected void consumeCatchFormalParameter ( ) { } protected void consumeClassBodyDeclaration ( ) { } protected void consumeClassBodyopt ( ) { } protected void consumeClassDeclaration ( ) { } protected void consumeClassHeaderName1 ( ) { } protected void consumeClassHeaderExtends ( ) { } protected void consumeClassHeaderImplements ( ) { } protected void consumeClassTypeElt ( ) { } protected void consumeCompilationUnit ( ) { } protected void consumeConditionalExpression ( int op ) { } protected void consumeConditionalExpressionWithName ( int op ) { } protected void consumeConstructorBody ( ) { } protected void consumeConstructorHeader ( ) { } protected void consumeConstructorHeaderName ( ) { } protected void consumeConstructorHeaderNameWithTypeParameters ( ) { } protected void consumeDefaultLabel ( ) { } protected void consumeDimWithOrWithOutExpr ( ) { } protected void consumeEmptyStatement ( ) { } protected void consumeEnhancedForStatement ( ) { } protected void consumeEnhancedForStatementHeaderInit ( boolean hasModifiers ) { } protected void consumeEnterAnonymousClassBody ( boolean qualified ) { } protected void consumeEnterVariable ( ) { } protected void consumeEnumConstantHeaderName ( ) { } protected void consumeEnumConstantNoClassBody ( ) { } protected void consumeEnumConstantWithClassBody ( ) { } protected void consumeEnumHeaderName ( ) { } protected void consumeEnumHeaderNameWithTypeParameters ( ) { } protected void consumeEqualityExpression ( int op ) { } protected void consumeEqualityExpressionWithName ( int op ) { } protected void consumeExitVariableWithInitialization ( ) { } protected void consumeExitVariableWithoutInitialization ( ) { } protected void consumeExplicitConstructorInvocation ( int flag , int recFlag ) { } protected void consumeFieldAccess ( boolean isSuperAccess ) { } protected void consumeForceNoDiet ( ) { } protected void consumeFormalParameter ( boolean isVarArgs ) { } protected void consumeGenericTypeWithDiamond ( ) { } protected void consumeStatementFor ( ) { } protected void consumeStatementIfNoElse ( ) { } protected void consumeStatementIfWithElse ( ) { } protected void consumeInsideCastExpression ( ) { TypeReference [ ] bounds = null ; int additionalBoundsLength = this . genericsLengthStack [ ( ( this . genericsLengthPtr ) -- ) ] ; if ( additionalBoundsLength > 0 ) { bounds = new TypeReference [ additionalBoundsLength + 1 ] ; this . genericsPtr -= additionalBoundsLength ; System . arraycopy ( this . genericsStack , ( ( this . genericsPtr ) + 1 ) , bounds , 1 , additionalBoundsLength ) ; } int end = this . intStack [ ( ( this . intPtr ) -- ) ] ; boolean isParameterized = ( topKnownElementKind ( CompletionParser . COMPLETION_OR_ASSIST_PARSER ) ) == ( CompletionParser . K_PARAMETERIZED_CAST ) ; if ( isParameterized ) { popElement ( CompletionParser . K_PARAMETERIZED_CAST ) ; if ( ( this . identifierLengthStack [ this . identifierLengthPtr ] ) > 0 ) { pushOnGenericsIdentifiersLengthStack ( this . identifierLengthStack [ this . identifierLengthPtr ] ) ; } } else { if ( ( this . identifierLengthStack [ this . identifierLengthPtr ] ) > 0 ) { pushOnGenericsIdentifiersLengthStack ( this . identifierLengthStack [ this . identifierLengthPtr ] ) ; pushOnGenericsLengthStack ( 0 ) ; } } Expression castType = getTypeReference ( this . intStack [ ( ( this . intPtr ) -- ) ] ) ; if ( additionalBoundsLength > 0 ) { <START_BUG> bounds [ 0 ] = getTypeReference ( this . intStack [ ( ( this . intPtr ) -- ) ] ) ; <END_BUG> castType = createIntersectionCastTypeReference ( bounds ) ; } if ( isParameterized ) { ( this . intPtr ) -- ; } castType . sourceEnd = end - 1 ; castType . sourceStart = ( this . intStack [ ( ( this . intPtr ) -- ) ] ) + 1 ; pushOnExpressionStack ( castType ) ; pushOnElementStack ( CompletionParser . K_CAST_STATEMENT ) ; } protected void consumeInsideCastExpressionLL1 ( ) { } protected void consumeInsideCastExpressionLL1WithBounds ( ) { } protected void consumeInsideCastExpressionWithQualifiedGenerics ( ) { } protected void consumeInstanceOfExpression ( ) { } protected void consumeInstanceOfExpressionWithName ( ) { } protected void consumeInterfaceHeaderName1 ( ) { } protected void consumeInterfaceHeaderExtends ( ) { } protected void consumeInterfaceType ( ) { } protected void consumeMethodInvocationName ( ) { } protected void consumeMethodInvocationNameWithTypeArguments ( ) { } protected void consumeMethodInvocationPrimary ( ) { } protected void consumeMethodInvocationPrimaryWithTypeArguments ( ) { } protected void consumeMethodInvocationSuper ( ) { } protected void consumeMethodInvocationSuperWithTypeArguments ( ) { } protected void consumeMethodHeaderName ( boolean isAnnotationMethod ) { } protected void consumeMethodHeaderNameWithTypeParameters ( boolean isAnnotationMethod ) { } protected void consumeMethodHeaderRightParen ( ) { } protected void consumeMethodHeaderExtendedDims ( ) { } protected void consumeAnnotationAsModifier ( ) { } protected void consumeAdditionalBound ( ) { } protected void consumeAdditionalBound1 ( ) { } protected void consumeAnnotationName ( ) { } protected void consumeAnnotationTypeDeclarationHeaderName ( ) { } protected void consumeAnnotationTypeDeclarationHeaderNameWithTypeParameters ( ) { } protected void consumeLabel ( ) { } protected void consumeMarkerAnnotation ( boolean isTypeAnnotation ) { } protected void consumeMemberValuePair ( ) { } protected void consumeMemberValueAsName ( ) { } protected void consumeMethodBody ( ) { } protected void consumeMethodHeader ( ) { } protected void consumeMethodDeclaration ( boolean isNotAbstract , boolean isDefaultMethod ) { }

Fix:
bounds [ 0 ] = ( ( TypeReference ) ( castType ) ) ;